Home / 150,665.12-207,902.73-90,234.22

Finding the Fourth Proportional to 150,665.12, 207,902.73 and 90,234.22

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Solution

The fourth proportional to 150,665.12, 207,902.73 and 90,234.22 is: 124,514.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,665.12 : 207,902.73 = 90,234.22 : x
  2. Step 2: Convert to fraction form
    150,665.12/207,902.73 = 90,234.22/x
  3. Step 3: Cross multiply
    150,665.12x = 207,902.73 × 90,234.22
  4. Step 4: Simplify right side
    150,665.12x = 18,759,940,157.66
  5. Step 5: Solve for x
    x = 18,759,940,157.66/150,665.12
  6. Step 6: Final answer
    x = 124,514.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.